OK, I finally tried this a little while ago this morning, right after the disk check nearly kicked in once again! The good (Or at least, encouraging!) news is with my 2TB external drive plugged into a different USB port, the disk check did NOT kick in. However, this is where a gets convoluted, at least by my estimation. I then plugged in my 2.0 rated WD 320 GB drive into the 3.0 USB port to which the 3.0 rated 2 TB drive is normally connected. Knowing that the disk check message was popping up EVERY time over the past 2 weeks with the latter device connected to THIS port, I'd have thought the same thing would occur with the other WD 320 GB external drive. Only it didn't! This time, the Acer PC Laptop booted up without incident. Now I'm left wondering whether there could be something going on with the 3.0 USB that's been triggering the disk check that occurs ONLY when a 3.0 rated device is actually attached to that port? Otherwise, why wouldn't it be the same result, regardless of what drive is attached to this? Any thoughts regarding the above? Frankly, I'm a bit puzzled, at the moment! CHEERS!